Most of the teenagers(including me), they don't understand the feeling, but later after they turn 30 - 50, they will eventually understand, and probably can tell you the answer for that question : Is cosmology as waste of time?

Hope I don't write something off topic
Cheers

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We come without a thing and gone without a thing. We need simple life. A cup of teas and a couple of meals per day, that is good enough. And this is my standard of living.